Table of contents

Project Structure

The example below shows how a typical Checkly CLI project is organized. Most files, directories and paths are conventions you can tweak to your liking using import / require and setting glob patterns.

• checkly.config.ts - Mandatory global project and CLI configuration. We recommend using TypeScript.
• src/__checks__/* - TS/JS files defining your checks and other resources.
• package.json - Standard NPM project manifest.

Here is an example directory tree of what that would look like:

.
|-- checkly.config.ts
|-- package.json
`-- src
    `-- __checks__
      |-- alert-channels.ts
      |-- api-check.check.ts
      `-- homepage.spec.ts

The checkly.config.ts at the root of your project defines a range of defaults for all your checks.

As your project grows, you will want to override these defaults for specific checks or check groups. The recommended way to tackle this is using a mix of global and local configuration.

As mentioned, your global checkly.config.ts holds a set of defaults for your project, checks and some CLI commands. Use defineConfig to configure your Checkly project.

import { defineConfig } from 'checkly'
import { Frequency } from 'checkly/constructs'

export default defineConfig({
 projectName: 'Website Monitoring',
 logicalId: 'website-monitoring-1',
 repoUrl: 'https://github.com/acme/website',
 checks: {
   activated: true,
   muted: false,
   runtimeId: '2022.10',
   frequency: Frequency.EVERY_5M,
   locations: ['us-east-1', 'eu-west-1'],
   tags: ['website', 'api'],
   checkMatch: '**/*.check.js',
   browserChecks: {
     frequency: Frequency.EVERY_10M,
     testMatch: 'browsers/**/*.spec.js',
   },
   multiStepChecks: {
     testMatch: 'multistep/**/*.spec.js',
   },
 },
 cli: {
   runLocation: 'eu-west-1',
   privateRunLocation: 'private-dc1'
 }
})

const { defineConfig } = require('checkly')

const config = defineConfig({
  projectName: 'Website Monitoring',
  logicalId: 'website-monitoring-1',
  repoUrl: 'https://github.com/acme/website',
  checks: {
    activated: true,
    muted: false,
    runtimeId: '2022.10',
    frequency: Frequency.EVERY_5M,
    locations: ['us-east-1', 'eu-west-1'],
    tags: ['website', 'api'],
    checkMatch: '**/*.check.js',
    browserChecks: {
      frequency: Frequency.EVERY_10M,
      testMatch: 'browsers/**/*.spec.js',
    },
    multiStepChecks: {
      testMatch: 'multistep/**/*.spec.js',
    },
  },
  cli: {
    runLocation: 'eu-west-1',
    privateRunLocation: 'private-dc1'
  }
})

module.exports = config;

Find a full reference of all project properties in the Project construct section.

Override any of the settings in the checks global configuration section at the individual check level.

// __checks__/api.check.ts
import { ApiCheck, AssertionBuilder, Frequency } from 'checkly/constructs'

const api = new ApiCheck('hello-api', {
  name: 'Hello API',
  locations: ['ap-south-1'], // overrides the locations property
  frequency: Frequency.EVERY_30M, // overrides the frequency property
  request: {
    method: 'GET',
    url: 'https://api.checklyhq.com/public-stats',
    assertions: [
      AssertionBuilder.statusCode().equals(200)
    ]
  }
})

Find a full reference of all check properties in the ApiCheck construct or BrowserCheck construct section.

Installation Using `checkMatch` and `testMatch`

Last updated on March 27, 2024. You can contribute to this documentation by editing this page on Github